Keyboard 'shift+c' not appearing on screen

Hi. I start MSFS, load aircraft in any scenery. All looks OK, music plays, animation around is OK. ‘Toggle EFB’ and ‘Enter aircraft’ (but not Shift+C) tabs are present. Can click on and change entries in EFB using ‘Toggle EFB’, but when clicking on ‘Enter aircraft’, button animates but nothing happens. (With Fenix 320 loaded in, I can power up and start it using Spad buttons/keys) - just can’t enter cockpit.
Also No keyboard ESC key, or any way of ending MSFS, other than Task Manager.
So the keyboard in MSFS is the issue I think…Keyboard works fine in other programs. I am in SU2 release only - not SU3 Beta.

It’s OK today…all normal…can’t explain that!!!